Mn- and Yb-Doped BaTiO-(NaBi)TiO Ferroelectric Relaxor with Low Dielectric Loss.

In this work, a Mn-and Yb-doped BaTiO-(NaBi)TiO ferroelectric relaxor was designed and prepared. The effects of Mn on the microstructures, dielectric and electrical properties of the ceramics were investigated. The X-ray structural analysis shows a perovskite structure.

Fabrication of TiO₂ Nanostructures on Ti₃SiC₂ Substrate by Anodic Oxidation.

A TiO2 nanostructure was prepared on a Ti3SiC2 substrate with different water and NH4F concentrations in a fluoride-containing ethylene glycol electrolyte via an anodization process using the same constant-anodization potentials, anodization duration and temperature. The as-prepared samples were characterized by a field-emission scanning electron microscope equipped with an energy dispersive X-ray spectroscope, as well as by X-ray diffraction and X-ray photoelectron spectroscopy. The influence of the anodizing parameters and annealing temperature on the morphology of the nanostructure and the phase structure was studied.